40978670 has 16 divisors (see below), whose sum is σ = 78100848. Its totient is φ = 15427200.

The previous prime is 40978657. The next prime is 40978673. The reversal of 40978670 is 7687904.

40978670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40978673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120356 + ... + 120695.

It is an arithmetic number, because the mean of its divisors is an integer number (4881303).

Almost surely, 2^40978670 is an apocalyptic number.

40978670 is a deficient number, since it is larger than the sum of its proper divisors (37122178).

40978670 is a wasteful number, since it uses less digits than its factorization.

40978670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241075.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 40978670 is about 6401.4584275773. The cubic root of 40978670 is about 344.7619165325.

The spelling of 40978670 in words is "forty million, nine hundred seventy-eight thousand, six hundred seventy".